stark



(No Model.) 2 Sheets -Sheet 1.

v J. STARK.

SELF ACTING SPINNING MULE.

No. 486,945. Patented Nov. 29, 1892.

lNVENT/OR dm 5 M 5%? WITNESSES @%M. M.

- (No Model.) 2 sheets-sheet 2.

J.- STARK.

SELF ACTING SPINNING MULE.

No. 486,945 PatentedNovJZQ, 1892.

STATES PATENT OFFICE.

JOHN STARK, OF DROYLSDEN, ASSIGNOR TO ASA LEES da 00., LIMITED, OF

OLDHAM, ENGLAND.

SELF-ACTING SPINNING-MULE.

SPECIFICATION forming part of Letters Patent No. 486,945, dated November 29, 1892.

Application filed February 16, 1892. Serial No. 421,741. (No model.)

To all whom it may concern:

Be it known that I, JOHN STARK, overlooker, a subject of the Queen of Great Britain, and residing at Droylsden, in the county of Lancaster, England, have invented new and useful Improvements in Self-Acting Spinning- Mules, of which the following is a specification.

This invention is designed with the object of providing an improved automatic nosingmotion for self-acting mules, by which the required movement at each successive draw of the carriage to give the desired amount of tension to the quadrant-chain is imparted by the shaper-screw.

It consists, essentially, in connecting a pivoted bracket or lever on the upper end of the quadrant-stock, which bears uponthe quad-- rant-chain with the shaper-screw by means of a series of specially-arranged levers with connecting-rods or chain, whereby at each movement of the shaper-screw the pivoted bracket or lever on the quadrant-stock is drawn down to increase the tension of the winding-chain. It will be fully described with reference to the accompanying drawings.

Figure 1 is a front elevation of quadrant and quadrant-stock of the mule with theinvention applied; Fig. 2, a plan of Fig. 1; Fig. 3, a front elevation showing modified form of the invention; Fig. 4, a plan of Fig. 3.

The quadrant A, quadrant-stock B, the shaper-screw C, the winding-chain D, the winding-drum D, the head-stock, and other parts of the mule are constructed in the usual way, and I have omitted from the drawings all parts except such as are connected with the present invention.

0n the end of the quadrant-stock B is pivoted a bracket E, preferably curved or bent in front elevation with an L-shaped end e, which, as the head of the quadrant-stock is depressed, bears against or upon the winding or quadrant chain D. At the end of the headstock framing to a bracket attached to the foot of the framing or to the floor I pivot a horizontal lever F, one end of which is attached or connected to a nutGon the shaperscrew 0, which moves gradually forward at each movement of the screw. The end of the horizontal lever F is preferably forked to embrace the screw and abut against the nut G. On the end of the head-stock framing, behind the quadrant A, on a fixed stud a, I pivot a depending arm or lever I-I, reach ng down to the floor. The lower end of the depending lever I-I engages with or comes in contact with the free end of the horizontal lever F, and as the lever F is moved by the shaper-screw O the motion is transmitted to the depending lever H. The depending lever H and the bracket E are connected together by a connecting-rod or link I, which at one end is formed with a slot t' to fit into or engage with a stud h, projecting from the side of the depending lever H and at the other end fits onto a stud e at the end of the pivoted lever E. The position of the stud 71. may be adjusted in a slot h of the lever H, and as the quadrant A is raised the rod or link I slides back over the stud h. This arrangement shows the'connection made outside the quadrant, which is what I at present prefer.

WVhen it is desired to place the connecting mechanism inside the quadrant A, I dispense with the depending lever H and connecting-rod or link I and connect the horizontal lever F with the bracket E of the quadrant-stock, as shown in Figs: 3 and 4, by means of a chain or rope K, passing over the guide-pulleys is, affixed to the head-stock foot, the chain being attached to the stud e at one end and to the stud at the other end. The action of the other parts is similar to that already described. As the horizontal lever F is moved by the shaper-screw O the pivoted bracket E is drawn down upon the Windingchain D. It will also be obvious that instead of dispensing with the depending lever H the link I only may be removed and the lover H connected to the bracketE by a chain.

What I claim as my invention, and desire to secure by Letters Patent,'is

1. In a self-acting mule, the combination, with the quadrant A, quadrant-stock B, winding-chain D, and shaper-screw O, of the horizontal pivoted lever F, moved forward thereby at each turn of the screw, the tighteninglever E on the quadrant-stock provided with an L-shaped end which comes in contact with the winding-chain D, and a non-rigid connection between the lever F and the lever E, whereby the movement of the one is transmitted to the other, substantially as described.

2. A nosing-motion for self-acting mules, comprised of a tightening lever orbracket E, pivoted to the quadrant-stock and provided with an L-shaped arm to bear upon and tighten the Winding-chain, a horizontal pivoted lever F, which is actuated by and trans- 'mits motion from the shaper-screw, and a dewhich engages with the link I, and the link I, provided with a slot 11, which connects the levers H and E, substantially as described.

4. In a self-acting mule, the combination, with the quad rant-stock B,the winding-chain D, the pivoted bracket or lever E on the upper end of the quadrant-stock which bears upon the quadrant-chain, and the shaperscrew O, provided witha nut moving thereon, of the horizontal pivoted lever F, connected to the lever E by a non-rigid connection to move or gradually alter the position of the tightening-lever E, substantially as described.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, this 1st day of February, 1892.

JOHN STARK.

Witnesses:

J. OWDEN OBRIEN, CHAS. OVENDALE. 

